I hate LHR airport, I will avoid this airport at any cost. ORD-LHR-STR last sunday. Connection was about 1.5, I was like ok T5 to T3 no problem. Nop the bus lines were good 400-500 long. Long story short, missed my connection, waited 12 hours in the BA lounge. God I wish I was hourly instead of being a salary field guy.